JPH04248911A - Rice transplantation machine - Google Patents

Abstract

PURPOSE:To prevent the drag of a rotor for pushing the fertilizer into deep layer of a stop stripe by using a specific transmission structure to drive the rotor for the deep-pushing of fertilizer. CONSTITUTION:An intermediate horizontal transmission shaft 24 is placed at the follower side of a transplantation transmission apparatus 19 and power is transmitted from the right and left transplantation transmission apparatuses through the intermediate transmission apparatus 23 and a one-way rotary clutch 25 to the transmission shaft 24. Even if any clutch 22 is disconnected, the fertilizer-pushing rotor 11 of the side of the stop stripe is driven by the transmission apparatus 26 receiving power from an active transmission apparatus 19 through the transmission shaft 24.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention transmits power from the transmission device of the feed case to each planting transmission device of a plurality of planting transmission cases connected in parallel to a feed case through respective clutches. At the same time, the said planting is applied to a plurality of deep fertilization pushing rotating bodies that push one row's worth of fertilizer deep under the mud surface into two adjacent rows of seedlings planted by the seedling planting mechanism attached to each planting transmission case. The present invention relates to a rice transplanter configured to transmit power from an attached transmission through a fertilization transmission.

0002

[Prior Art] The above-mentioned rice transplanter is, for example,
As shown in Publication No. 3916, a planting transmission device in a planting transmission case transmits power to a plurality of deep fertilization pushing rotating bodies that apply one row's worth of fertilizer to two adjacent rows of seedlings. For example, JP-A-2-13151
As shown in Publication No. 2, compared to a system in which power is transmitted to a plurality of deep fertilization pushing rotating bodies at once through a relay transmission device in parallel with a planting transmission device to a seedling planting mechanism, it is desirable to reduce weight. Although the machine has the advantage of not requiring a fertilization transmission device that transmits a large torque from the feed case to the deep fertilization pushing rotary body, as well as a strong and heavy relay transmission case to support it, Conventionally, when planting fractional rows, when the power of the planting transmission device is cut off via the individual row clutch, the power transmission to the deep fertilization pushing rotary body on the downstream side of the transmission is also cut off. It had become.

0003

[Problem to be Solved by the Invention] Therefore, when planting fractional rows, straw waste or the like gets caught and dragged by the stopping rotary body, which creates large groove marks and disturbs the fertilized mud surface in the next process. was there.

[0004] Therefore, when planting fractional rows, the deep fertilization pushing rotating body of the seedling planting mechanism that stops should be lifted upward to prevent dragging, but in such a case, it is necessary to change the posture of the pushing rotating body. This has the disadvantage that it is troublesome. Further, by lifting a part of the pushing rotary body from the field surface, a problem arises in that the left and right weight balance of the seedling planting mechanism is disrupted.

The object of the present invention is to eliminate the above-mentioned drawbacks by devising a transmission structure for the deep fertilization pushing rotary body.

[0006]

[Means for Solving the Problems] A characteristic configuration of the present invention for achieving the above object is that one horizontal transmission shaft for relaying to the fertilization transmission device is provided on the lower transmission side of the planting transmission device. At the same time, power is transmitted from the planted transmission devices at both left and right ends of the horizontal transmission shaft via relay transmission devices, and furthermore, between each of the relay transmission devices and the horizontal transmission shaft, The point is that a one-way rotation clutch that allows rotation is interposed, and the functions and effects are as follows.

[0007]

[Function] As shown in FIG. 1, when planting a fraction of rows, for example, if the right-hand row clutch 22 is disengaged, the deep fertilization pushing rotary body 11 on the stop row side receives relay transmission from the left-hand planting transmission device 19. device 23 and one-way rotation clutch 25,
In addition, it is driven by being transmitted to the fertilization transmission device 26 via the horizontal transmission shaft 24, and on the other hand, when the left row clutch 22 is disengaged, the deep fertilization is pushed on the stopped row side. Contrary to the above, the rotating body 11 is driven by being transmitted from the planting transmission device 19 on the right side to the fertilization transmission device 26 via the relay transmission device 23, the one-way rotation clutch 25, and the horizontal transmission shaft 24. be done. When planting all rows, the power is transmitted from the left and right planting transmission devices 19, 19 to the deep fertilization pushing rotary bodies 11, 11, 11, but there is a deviation in the rotation of the left and right planting transmission devices 19, 19. When this occurs, the transmission is transmitted from the planting transmission device 19 or 19 on the side with the faster relative rotation via the one-way rotation clutch 25 or 25.

[0008]

As a result of the above structure, dragging of the deep fertilization pushing rotary body of the stop row is prevented, and disturbance of the fertilization mud surface in the next step is suppressed.

[0009] As a transmission device for the deep fertilization pushing rotary body, two relay transmission devices are needed on the left and right, which have a small transmission torque and a short transmission torque from the planting transmission device to the fertilization transmission device, and a transmission device with a large transmission torque from the feed case. There is no need for a long and durable relay transmission device, and the weight of the transmission structure for the deep fertilization pushing rotary body can be reduced.

0010

[Embodiment] Hereinafter, an embodiment of the present invention will be explained using a rear-mounted rice transplanter equipped with a six-row planting and fertilizing device.

FIG. 2 shows the elevating link mechanism (
A seedling planting device A is shown connected to a seedling planting device (not shown), and a fertilizing device B is provided at the rear of the seedling planting device A, which applies fertilizer in conjunction with the planting operation.

[0012] Each of the seedling planting devices A includes a seedling platform 1 which is tilted downward after placing the seedlings for planting, and a seedling platform 1 which is placed side by side in the rear and downward direction and cuts out the seedlings one by one. Plant 6
The seedling planting mechanism 2 and the like are attached to a planting transmission case 3 which also serves as a frame.

The seedling planting mechanism 2 has a planting rotation case 4 which is driven and rotated around a horizontal axis X1 at the center thereof attached to both rear and lateral sides of the planting transmission case 3. The planting claws 5, 5 are attached to both ends of the rotating case 4, respectively, and the planting claws 5, 5 are configured to cut out and plant the seedlings while drawing a substantially elliptical trajectory as the rotating planting case 4 rotates. One rotation of the rotary case 4 performs two planting operations so that the planting work can be performed at high speed.

The fertilization device B includes a shallow fertilization device 6B that intermittently sprays fertilizer at a depth of 5 cm near the sides of each planted seedling, and a shallow layer fertilization device 6B that sprays fertilizer for each 5 cm depth of each seedling. It consists of a deep layer fertilization device 6B' that intermittently spreads fertilizer at a depth of 15 to 20 cm, and the shallow layer fertilization device 6B is configured to transfer the fertilizer delivered from the fertilizer storage hopper 7 via the delivery mechanism 8 to the furrowing device. The deep fertilization device 6B' consists of a second downstream hose 12 that guides the fertilizer fed out from the feeding mechanism 8 to the deep fertilization pushing rotary body 11.

The feeding mechanism 8 is configured to feed out a predetermined amount of fertilizer in conjunction with the rotation of the seedling planting mechanism 2. That is, as shown in FIG. 3, a connecting bracket 13 is constructed and connected to the side of the planting rotation case 4 over both ends thereof, and the rotation center of the planting rotation case 4 is located in the middle of the connection bracket 13. The position deviated by a predetermined amount from the feed mechanism 8 is pivotally connected to the swing end of a swing drive swing arm 15 integrally connected to the swing roll 14 of the feeding mechanism 8 through a push/pull rod 16. . In this way, as the planting rotary case 4 rotates, the swing arm 15, that is, the rotary roll 14, reciprocates at a constant pitch via the push/pull rod 16, so that a predetermined amount of fertilizer is delivered. be.

The deep fertilization pushing rotary body 11 has its fertilization transmission case 17 attached to the rear end of the planting transmission case 3 so as to be rotatable about the horizontal axis P1, and the fertilization depth can be adjusted by an adjustment mechanism 18. It is configured so that it can be switched to a non-operating position where it is retracted above the mud surface.

Next, the transmission structure for the deep fertilization pushing rotary body 11 will be explained. As shown in FIG. 1, for each planting transmission device 19, 19, 19 of the planting transmission cases 3, 3, 3 connected in parallel to the feed case C receiving power from the traveling machine, the feed case Transmission is transmitted from the horizontal transmission shaft 21 driven by the transmission device on the C side through the clutches for each row, that is, the clutches 22, 22, 22 for each row, to drive the respective planting rotation cases 4. Then, the fertilizer transmission cases 17, 17 are transmitted from the left and right transmission devices 19, 19 via relay transmission devices 23, 23, respectively.
. One-way rotation clutches 25, 25 are interposed between the two, so that transmission can be made to the horizontal transmission shaft 24 from either the left or right planting transmission device 19, 19, and the transmission is connected to the horizontal transmission shaft 24. It is configured to transmit power to the respective deep fertilization pushing rotary bodies 11, 11, 11 via respective fertilization transmission devices 26, 26, 26.

[Another Example] When applying fertilizer, FIG.
As shown in Figure 2, 6 rows of shallow layer fertilization and 4 rows of deep layer fertilization were performed, with 1 layer of deep layer fertilization on both left and right sides compared to the middle layer of deep layer fertilization.
Set the fertilizer application amount to /2, turn the headland at the edge of the ridge, and when planting the adjacent planting site, move the fertilization position where the fertilizer was applied earlier again and apply one dose of fertilizer. You may also do so.

Further, as shown in FIG. 5, it may be applied to five strips.

Although reference numerals are written in the claims for convenience of comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

[Figure 1] Schematic plan view showing the transmission system

[Figure 2] Side view of fertilizer application device

[Figure 3] Rear view of fertilizer application device

[Figure 4] Plan view showing another example with different fertilization locations

[Fig. 5] Schematic plan view showing another embodiment

[Explanation of symbols]

2 Seedling planting mechanism 3 Planted transmission case 11 Deep fertilization pushing rotor 19 Planting transmission device 20 Transmission device 22 Each row clutch 23 Relay transmission device 24 Horizontal transmission shaft 25 One-way rotation clutch 26 Fertilizer transmission device C Feed case

Claims (1)

[Claims] Claim 1: A transmission device (2) of the feed case (C) is connected to each planting transmission device (19) of a plurality of planting transmission cases (3) connected in parallel to the feed case (C).
0) through each row clutch (22), and a seedling planting mechanism (2) attached to each planting transmission case (3).
) The planting transmission device (19) transmits fertilizer application to a plurality of deep fertilization pushing rotating bodies (11) that push one row of fertilizer into two adjacent rows of seedlings planted deep below the mud surface. In the rice transplanter configured to transmit power via the device (26), one horizontal transmission shaft for relaying to the fertilization transmission device (26) is provided on the downstream side of the transmission of the planting transmission device (19). 24), and power is transmitted from the planted transmission devices (19) at both left and right ends of the horizontal transmission shaft (24) via relay transmission devices (23), and each of the relay transmission devices (23) A rice transplanter in which a one-way rotation clutch (25) is interposed between the and the horizontal transmission shaft (24) to allow advance rotation of the relay transmission (23).